Weatherproof FreeCAD Door Phone Casing

I need a parametric model in FreeCAD for a wall-mounted outer enclosure that will house my door-phone electronics. The box will be installed fully outdoors, so every surface, gasket groove, and drainage detail has to stand up to direct rain and strong sun... (Budget: $30 - $250 USD, Jobs: 3D CAD, 3D Design, 3D Modelling, 3D Print Design, 3D Printing, CAD/CAM, Manufacturing Design, Product Design)